Feed-water heater.



VPATENTE) 0012.25, 1904.

B. EKBNBERG. I

FEED WATER HEATER.

APPLICATION ITLBD 00T. 1. 1903.

3 SHEETS-SHEET 1.

NO MODEL.

[w1/anim" No. 773,132. PATBNTBAD 00T. 25, 1904.

B.EKBNBBRG.

FEED WATER HEATER. APPLIOATION FILED ooTQl. 190s.

PATBNTBD 06T. 25, 1904.

E. EKENBERG. FEED WATER HEATER. APPLIAMON'PILED 00T.1. 1903.

' SBHEETS-SHEET 3.

N Monml.

Issa

W/TNESSES: f m, y

A TTOHNEY UNITED STATES Patented October 25., 1904.

PATENT OFFICE.

FEED-WATER HEATER.

SPECIFICATION forming part of Letters Patent No. 773,132, dated October 25 1904.

Application flied october 1, 1903. 'serial No. 175,327. (No model.)

To all whom t may concern.-Y

Be it known that I, BIRGER EKENBERG, a

subject of the King of Sweden and Norway,

residing in the cityof New York, borough of Brooklyn, in the county of Kings and State of New York, have invented a certain new and useful Improvement in Feed-Water Heaters, of which the following is a specification.

The invention relates to traction or selfpropelling road-engines, and particularly to that class in which steam is employed for` the motive power. Y

An important object'of the invention is to provide a motor-vehicle adapted for heavyl service, such as transporting heavy loads or drawing loaded wagons, plows, and performing analogous duties, also adapted to serve as a portable engine for` hoisting and winding and for driving threshers, saw and other mills, and like machinery, in which the hot portions of the apparatus are so arranged relatively to the water-tank and its connections as to raise the temperature of these parts sufliciently to insure them from freezing, and thus permit the engine to be used successfully during periods of extreme low temperature.

The invention consists in certain novel features and arrangements of parts by which the above objects are attained, to'be hereinafter described.

The accompanying drawings vform a part of this speciiicationand show the invention as it Y has been carried out.

Figure 1 is a sideelevation showing the traction-engine complete and a portion of a wagon or truck drawn thereby. Fig. 2 is a plan or top View with the cover or canopy removed. Fig. 3 is a corresponding View with portions of the floor or platform omitted to show the partsbeneath. The remaining iigures are on a larger scale and show details of the construction. Fig. 4 is a front elevation, partly in Vertical section, showing the front or steering wheel and its saddle and connections.

Similar letters of reference indicate the same parts in vall the figures. 1

The main frame of the vehicle is composed of steel I-beams carrying the engine, boiler, water-tank, driving and hoisting mechanism and other equipments supported on two driving-wheels at the rear and a single steeringwheel at the front. The I-beams or rails at the sides are marked A and extend parallel with each other from the rear to a line forward of the mid-length,- where they are bent inwardly toward the center line, as at A', and thence extend again longitudinally parallel and` in the same plane to the front, as at A2. The rails-are connected by transversel beams of the Vsame cross-section lying in the same plane with the rails and joined thereto by gusset-pieces, as usual. rlhe beam at the rear is 'marked A3, another at about the mid-length .members and the lmember A6.

The hoisting-drums Dl D2 and their shaft D extend transversely of the frame at the rear and lare supported in bearings bolted to the under faces of the members A A, and the whole is carried on a rear driving-shaft E, journaled in boxes E', received in vertical yokes A, bolted to the members A A, and

steering-wheel F2 at the front, mounted in a rotatable yoke or saddle F The latter has a circular head F, provided with a circular steell plate or ring f, having an annular groove, in which is received a series of hardened-'steel balls f', serving as an antifriction-support for the forward portion of the vehicle, the load being transmitted thereto through a casting G of circular form, having a ring grooved on the under face to match to the series of balls and having four arms Gr securely bolted to the frame members A2 A2 A6 A7. A pintle F3 from the head F extends through the center of the casting G and is squared to receive the boss F2 of a segment F5, having its periphery toothed to match to the threads of a worm F6, by which the vehicle is steered. A pinch- .having two traction-wheels E2 E2, and on a IOO ing-screw through the boss holds the segment against loosening or jarring off.

rlhe shaft or axle F8 of the steering-wheel F 2 is journaled in boxes F, arranged to slide in the vertical ways or jaws F10 of the yoke and supports the latter, with the front end of the vehicle, on helical springs Fu between the boxes and yoke.

The main shaft of the engine extends across just above the frame and is supported in three bearings on the frame members A A and a short intermediate member A10. The shaft is in two parts, connected by a universal joint at B2, and carries on one side of the vehicle an overhung pulley B3 and on the other a beveled gear-wheel B2, from which power for the winding and hoisting mechanism is taken. The shaft B also carries a crank B5, operating the feed-pump, and a pinion B splined to receive a feather on the shaft and to slide axially thereon into and out of mesh with a gear-wheel H on a counter-shaft H below the shaft B and supported in bearings on the under faces of the members A A. The shaft H carries a sprocket-wheel H2, on which runs a sprocket-chain H, preferably of the Reynolds "silent type, partially encircling a corresponding but larger sprocket-wheel E3, forming part of the differential gear on the rear or driving axle E. Power from the engine is transmitted through the sliding pinion B6 to the counter-shaft H and thence by the wheels H2 E3 and chain H3 to the tractionwheels E2 E2 on the shaft E. The pinion B is thrown into and out of mesh by a suitable lever B7 and connections therefrom. (Not shown.)

The forward end of the vehicle is rounded and the space in front of the boiler occupied by a water-tank I of large capacity resting on a floor Au, supported above the steering-segment and overhanging the frame on each side. The tank is covered with a iiooring I', which may be provided with an asbestos or other non-conducting lining to protect the tank from cold and is equipped with filling-holes 12, as required. The top of the boiler C projects a little above the tank and products of combustion are led through a curved pipe C' to a curved flue C2, traversing the tank and finally escaping through a stack C2. The heat thus supplied is absorbed by the water in the tank and the temperature kept suiiciently high to prevent freezing while the boiler is in service. Fuel is supplied through a central opening having a cover C4, and at the lower end of the boiler is an additional iiredoor and ash-pit door, (marked C5 and CG.)

A iioor A12 at a higher level than the floor A11 extends rearwardly from the water-tank to the back of the vehicle, constituting the main deck thereof. It is cut away to receive the boiler and engine, and in the immediate vicinity of the boiler is a lower fioor or deck A13, supported on transverse partitions forming a closed box or compartment containing the feed-pump J and feed-water heater K and their connections, receiving' heat from the boiler and inclosed steam-pipes.

The boiler is located centrally, with the engine on one side and a drivers seat L on the other. Immediately in front of the driver is the tiller-wheel F13 on a vertical shaft F, transmitting motion through the beveled gears F15 to the horizontal shaft El, on which is the worm F, in mesh with the segment l1, as above described.

Steam from the boiler passes through a pipe C7, controlled by a stop-valve (1 and a throttle-valve C", located at the left of the driver within easy reach to the engine, and after doing its work in the high and low pressure cylinders passes through the exhaust-pipe C" to the feed-water heater K and thence through the curved pipe C and ilue C to the stack.

The feed-pump J runs continuously while the engine is in motion and draws water through the pipe J' Afrom the tank and delivers it through the pipe J2 to the feed-water heater. After traversing the latter it returns through a pipe K/ and is fed to the boiler through abranch K2, when required, or if the boiler is sufficiently supplied passes through the branch K, controlled by the valve K, to the tank and serves by circulating therein to raise the temperature. The valve K'I is placed within easy reach of the driver outside of the closed compartment in which the waterpipes are inclosed.

At the left of the driver below the throttlevalve is a bleke-operating shaft M, having a horizontal crank-handle M', by which it may be turned. At the lower end is a screw (not shown) connecting it to the jaws of a forked lever secured to a transverse rocking sha ft M7, on which are carried two arms Bl, equipped with brake-shoes M, adapted to bear frictionally against the smooth central portions of the peripheries of the driving or traction wheels E2 The remaining circumferential portions of the wheels are roughened by diagonal lands and grooves adapted to lake hold in soft ground and to ride over hard-surfaced roads without roughening or injuring them. The action of the screw permits the brake to be applied with great force by the expenditure of but little power and has the additional advantage of holding the slices in or out of contact without employing other locking devices.

The lever B7 shown just in front of the drivers seat controls the sliding pinion B, described above, by which the power may be shifted from the propelling mechanism to condition the engine to serve either in driving other machinery through a round or flat belt running in the groove or on the face of the pulley B:s or in winding or hoisting by the drums D D2 and derrick R.

Motion is imparted to the wimling-drums lOO llO

through the beveled gear-wheel Bf on the main shaft and a corresponding pinion D2 on a sleeve D2', inclosing the end of a rearwardlyr extending shaft D5, supportedin suitable bearings and equipped with` a clutch D, op-

l erated by a lever D7 at the right of the driver trolling the cones.

and permitting the shaft D5 to be revolved or released when required.y The rear end ofthis shaft carries a worm D2, engaging a wormwheel D, secured on the transverse hoisting or drum shaft D. The main hoisting-drums D D are loosely mounted 'on this shaft and are caused to revolve ytherewith by a double cone P on a squared central portion of the shaft and thrown to either side to engage' in correspondingly-shaped cavities in the drums D by a rock-shaft P, operated by a handlever P2, located in the center of the drivers space and at `the left of the seat. The rockshaft has a pair of arms P3 engaging pins on a ring received in a circumferential groove between the cones, by which the latter are moved on the shaft D to engage the drums.

The drums areheld against revolving in the direction of the strain by pawls engaged in ratchets P5 on the drums and disengaged by foot-levers P7 adjacent to the leverv P2, con- The hoisting-derrick comprises a mast R, set in a suitable step or socket R2 on the rear frame member A3 and guyed from the top tov lthe roof-supporting stanchionsAMat each side at the front by ropes R3, equipped with snatch-blocks or other means of hauling them taut, and a boomR, pivoted ina bracket near the base of the mast and having at the outer end an eye R2, in which is secured a rope-R2, running over a. pulley Pt at the top of the mast to one of the drums, vby which the boom is lifted and swung, and a yoke R2, having a hook to which is attached the hoisting-rope R2, forming a bight, as usual, containing a hooked block for the load and running over a pulley R2, set in the end of the boom, and thence to one ofthe drums. Each of the main portions D of the latter is adapted to receive a rope to be wound thereon, and the smaller portions D2, turning with the shaft D, are adapted to receive one or more turns of a rope held in frictional contact therewith by strains on the free end. The derrick may be vremoved when desired by loosening the guys and unstepping the mast with its boom andrnay be carried alongside the vehicle in suitable loops or slings. (Not shown.)

S is an eye or coupling-head adapted to receive a link S'by which a trailer or other ob-l sys ject to be moved, as the wagon T, Fig. l, may v and engine, a flue from the furnace of said A boiler traversing the tank and extended into and emptying into the stack, an exhaust-steam pipe entering said flue from said engine, said flue being reversely curved and serving to raise the temperature of the water in said tank ibythe passage therethrough of products of combustion and exhaust-steam.

3.` Ina motor-vehicle of .the character set forth, aV water-tank, boiler, and engine,.a

curved` pipe and a reversely-curved smokeflue from the furnace of said boiler traversing the tank, a closed compartment inclosing a portion of said boiler, a feed-pump, a feedwater heater and water connections from said tank all inclosed in said compartment, an exhaust-steam pipe from said engine to said feed-water heater, and an exhaust-steam pipe from said heater to said liuc.

In testimony that I-claim theinventi'on f above set forth vI aliix my signature in presence of two witnesses.

BIRGER EKENBERG.

Witnesses: v

CHARLES R. SEARLE, RoB'r. CONNOR. 

